SOLUTION: How many soldiers are there in a group of 27 sailors and soldiers if there are four fifths as many sailors as soldiers? Question is from sample test.The answer is 15,but does no

Question 185320: How many soldiers are there in a group of 27 sailors and soldiers if there are four fifths as many sailors as soldiers?
Question is from sample test.The answer is 15,but does not make any sense to me.Please help!
For me 4/5 sailors is 21.6 people from that group ,and 1/5 soldiers of 27 is 5.4 people.So I understand that is 22 sailors and soldiers will be 5.
Plesae explain how to solve this problem.Why answer is 15?
Thank you.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = number of sailors
Let = number of soldiers
Right away, you know there are
less sailors than soldiers, since
is smaller than
Suppose you could actually have of a
sailor? Then would be true
The problem says
If , then
and also

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